AIRCRAFT PROPELLER SERVICE, LLC

Aircraft Propeller Service, LLC specializes in the repair, overhaul, and manufacturing of critical aircraft propulsion components, with deep expertise in HC-144 Ocean Sentry systems. The company delivers precision maintenance services for propeller blades, hubs, spinners, and associated auxiliary equipment, performing both component-level repairs and full system overhauls in compliance with military and aviation regulatory standards. Their technical capabilities encompass blade restoration, hub assembly refurbishment, bulkhead and ring repair, and spinner refurbishment—activities requiring advanced metallurgical analysis, dynamic balancing, and non-destructive testing. The contractor’s focus on mission-critical rotorcraft systems distinguishes them as a trusted provider for high-reliability aviation sustainment, particularly for Coast Guard and DHS-operated platforms requiring stringent airworthiness certification. The company maintains a consistent, long-standing relationship with the Department of Homeland Security, primarily supporting the U.S. Coast Guard’s HC-144 fleet through scheduled and unscheduled maintenance actions. Their work spans both logistical support and direct component manufacturing, indicating a vertically integrated role in sustaining airborne surveillance and maritime patrol capabilities. Contracts consistently reference direct technical interventions on propulsion subsystems, suggesting a partnership built on responsive, mission-essential service delivery. Aircraft Propeller Service, LLC operates primarily under NAICS 488190 for aircraft support activities and 336413 for aircraft parts manufacturing, positioning them at the intersection of maintenance, repair, and overhaul (MRO) and light aerospace manufacturing. Their market niche is defined by specialized expertise in turboprop propulsion systems, particularly for medium-range patrol aircraft, serving a narrow but critical segment of federal aviation sustainment. As a small business structured as a 2L entity, the company operates from Lake Zurich, Illinois, with no federal certifications on record. Their geographic footprint supports federal aviation logistics hubs in the Midwest, enabling rapid response to urgent maintenance requirements without reliance on third-party intermediaries.